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Energy today basics.
Fossil energy runs the engines, politics and economy of the world. Todays use uf fossil energy is not only wasteful, but is also destrying the environment we live in. Our use of fossil energy kills millions of people every year, by pollution, and almost all conflicts and wars the last 100 was about energy.
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Why do we need the change in energy use and production?
The main problem isn’t that we use energy, but how we
produce and consume energy resources. As long as we continue to cover our energy
needs primarily by combustion of fossil fuels or nuclear reactions, we are going
to have the problems, the environmental impacts, social and sustainability
problems. What we really need are energy sources that will last forever and can
be used without pollution of the environment. .....more
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Reserves of Fossil Fuels.
Fossil fuels are
valuable natural energy sources which required several millions of years for
their creation but are now rapidly being depleted. The prominent worry that
fossil fuels will run out was reported almost 30 years ago by the influential
book Limits to Growth. This book reported a series of computer simulations of
future resource use in which world fuel consumption continued to rise
exponentially. The predicted result was an ultimate collapse in fuel supplies,
regardless of the amount of fuel assumed to be available. .....more
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Environmental effects of energy use.
Most important environmental impacts caused by energy sources are human health, global climate
change and acid rain – all of which have the origin in the combustion of fossil
fuels and lead to global or transboundary effects. .....more
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Social problems related to energy use.
Beside environmental
problems associated with large-scale use of fossil and nuclear fuels and the
problems with sustainability there are also social problems arising from present
trends of energy utilization. .....more
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Renewable energy sources.
Fortunately, solutions exist to cut
greenhouse gas emissions, reduce acid deposition, improve air quality and to
solve social problems related to recent energy use. Shifting investment from
fossil fuels like coal and oil to renewable energy and energy efficiency would
allow cleaner, more sustainable sources of energy to take their rightful place
as market leaders. .....more
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Solar energy.
Solar energy runs the engines of the earth. It heats its atmosphere and its lands, generates its winds, drives the water cycle, warms its oceans, grows its plants, feeds its animals, and even produces its fossil fuels. .....more
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Biomass energy.
The solar energy, stored in chemical form in plant and
animal materials, is among the most precious and versatile resources on earth. .....more
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Wind energy.
Wind energy is a form of solar energy produced by uneven heating of the Earth’s surface. About 1 to 2 per cent of the energy coming from the sun is converted into wind energy. That is about 50 to 100 times more than the energy converted into biomass by all plants on earth. .....more
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Hydro energy.
Water constantly moves through a vast global cycle, in which it evaporates (due to the activity of the Sun) from oceans, seas and other water reservoirs, forms clouds, precipitates as rain or snow, then flows back to the ocean. The energy of this water cycle, which is driven by the sun, is tapped most efficiently with hydropower. .....more
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Hidden cost of fossil fuel utilisation.
It is important to note that when energy
experts are comparing different energy sources the question of their price is
the crucial one and renewables are mostly considered as more expensive than
fossil fuels. What is not known is the fact that such a comparison is usually
based of wrong estimation of costs. When we pay the electric bill to the power
company or fill up our car’s tank, we usually pay a specific price for the
energy which does not express the full cost related to energy consumption. .....more
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BIOFUELS ASIA
conference
2008 - 27th-28th March 2008,
Thailand
Energy Savings in
UK
Energy Savings in
USA
"Disturbed children"
and
"Grumpy old men".
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